#include <LiquidCrystal_I2C.h>

const int potenPin = A0;      
const int lampuPin = 3;     
const int lcdAddress = 0x27; 

LiquidCrystal_I2C lcd(lcdAddress, 16, 2);

void setup() {
  pinMode(lampuPin, OUTPUT);
  lcd.begin(16, 2);
  lcd.print("Persentase: ");
}

void loop() {
  // Membaca nilai potenensiometer
  int nilaipoten = analogRead(potenPin);

  // Mengonversi nilai potenensiometer menjadi persentase (0-100)
  int persentase = map(nilaipoten, 0, 1023, 0, 100);

  // Mengatur kecerahan lampu berdasarkan nilai potenensiometer
  analogWrite(lampuPin, map(nilaipoten, 0, 1023, 0, 255));

  lcd.setCursor(0, 1); 
  lcd.print("     ");   
  lcd.setCursor(0, 1);
  lcd.print(persentase);
  lcd.print("%");

  delay(100);  
}